It is important to note that the Nintendo Switch is a "closed" ecosystem. Unlike the Wii or GameCube era, you cannot simply put a save file on an SD card and have the console recognize it. For Modified (Homebrew) Consoles
If you choose to tackle the challenge yourself, expect to invest anywhere from of pure gameplay. Here is the optimal roadmap to hit that perfect status. 1. Speed-Unlocking the Roster super smash bros ultimate 100 save file